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Senior Software Engineer (Early-Stage SaaS | .NET & React)
📍 London | 🏢 On-site | 💼 Full-time | 💰 Up to £100k + equity
The Role
A fast-growing startup is building a financial operations platform and is looking for a hands-on Senior Software Engineer.
You’ll help build the product from the ground up, own key features, and have a real influence on both the technology and the direction of the platform.
What You’ll Do
- Build new features across the backend and frontend
- Work with .NET and a modern JavaScript framework (React used internally)
- Help shape the architecture as the platform scales
- Work closely with founders, engineers and product teams
- Take ideas from concept to production
What You Need
- Experience building software with .NET or another modern backend language
- Experience with JavaScript/TypeScript on the frontend
- Comfortable working with APIs and databases
- Good problem-solving skills and ability to take ownership
- Keen to work in a startup environment where things move fast
Nice to Have (Not Essential)
- Cloud experience (Azure, AWS or GCP)
- Worked in startups or on SaaS products
- Understanding of financial or data-heavy systems
Why Apply?
- High ownership and influence from day one
- Chance to help shape a product and engineering culture early
- Competitive salary + meaningful equity
- Work with a small, ambitious team solving real-world problems
Key Skills
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